Not sure on player scores but a lot of historical stats and records don't update until after an overnight job that runs on the server. So check it the next day and if not what you expect I'd put in a support ticket to ask if this is possible.

Do *NOT* look at the boxscores on nfl.com They are known to be unreliable and rarely updated. You should be looking at the GameBook for the game for the most "official" stats that are available to the public.

Also as noted live scoring on MFL is not official and often defensive stats are delayed. Once the final stats are out early Tuesday after the Monday night game then see what happens.